Evidence map›Paper›PMID 22815087›Full record

ArticleHippocampus2013

Hyperforin modulates dendritic spine morphology in hippocampal pyramidal neurons by activating Ca(2+) -permeable TRPC6 channels.

Kristina Leuner, Wei Li, Michelle D Amaral, Stephanie Rudolph, Gaston Calfa, Anita M Schuwald, Christian Harteneck, Takafumi Inoue, Lucas Pozzo-Miller

Open access · greenAbstract read
In one paragraph

Article in Hippocampus, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 36 papers.

0numbers the graph read from it
0cells of the map it votes in
36citing papers in PubMed
10.1field-weighted citation impact, top 2% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

36 citing papers in PubMed, 72 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Review
  5. Documentary Analysis ofPharmaceuticals (Basel, Switzerland) · 2024
    Review
  6. Therapeutic potential of transient receptor potential (TRP) channels in psychiatric disorders.Journal of neural transmission (Vienna, Austria : 1996) · 2024
    Review
  7. Review
  8. Article
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  14. Review
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors at 5 institutions in 3 countries.

Kristina LeunerDepartment of Neurobiology, Civitan International Research Center, The University of Alabama at Birmingham, Birmingham, Alabama 35294, USA. leuner@em.uni-frankfurt.de
Wei Li
Michelle D Amaral
Stephanie Rudolph
Gaston Calfa
Anita M Schuwald
Christian Harteneck
Takafumi Inoue
Lucas Pozzo-Miller
University of Alabama at Birmingham · USGoethe University Frankfurt · DECivitan International · USUniversity of Tübingen · DEWaseda University · JP

Funding

Alabama Neuroscience Blueprint Core CenterP30NS057098 · NINDS · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI SWEATT, JOHN DAVID · 2006 to 2010
$9.5M
UAB MENTAL RETARDATION RESEARCH CENTER (MRRC)P30HD038985 · NICHD · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI KORF, BRUCE R · 2000 to 2012
$8.6M
UAB Neuroscience Core CenterP30NS047466 · NINDS · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI STANDAERT, DAVID G. · 2005 to 2019
$8.5M
White mater neurons &nitric oxide in neonatal neocortexP01HD038760 · NICHD · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI FRIEDLANDER, MICHAEL J · 2000 to 2004
$3.9M
ACTIONS OF BDNF ON CA2+ SIGNALS IN HIPPOCAMPAL NEURONSR01NS040593 · NINDS · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI POZZO-MILLER, LUCAS D · 2000 to 2010
$2.8M
MeCP2 Modulation of BDNF Signaling: Shared Mechanisms of Rett and AutismR01NS065027 · NINDS · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI POZZO-MILLER, LUCAS D · 2010 to 2014
$1.7M
Reversing BDNF Impairments in Rett Mice with TRPC Channel ActivatorsR21HD074418 · NICHD · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI POZZO-MILLER, LUCAS D · 2013 to 2014
$399k
NICHD NIH HHS P01 HD038760NICHD NIH HHS P30 HD038985NICHD NIH HHS R21 HD074418NINDS NIH HHS NS-065027NINDS NIH HHS NS40593NINDS NIH HHS P30 NS047466NINDS NIH HHS P30 NS057098NINDS NIH HHS R01 NS040593NINDS NIH HHS R01 NS065027
6 · The paper itself

Abstract

The standardized extract of the St. John's wort plant (Hypericum perforatum) is commonly used to treat mild to moderate depression. Its active constituent is hyperforin, a phloroglucinol derivative that reduces the reuptake of serotonin and norepinephrine by increasing intracellular Na(+) concentration through the activation of nonselective cationic TRPC6 channels. TRPC6 channels are also Ca(2+) -permeable, resulting in intracellular Ca(2+) elevations. Indeed, hyperforin activates TRPC6-mediated currents and Ca(2+) transients in rat PC12 cells, which induce their differentiation, mimicking the neurotrophic effect of nerve growth factor. Here, we show that hyperforin modulates dendritic spine morphology in CA1 and CA3 pyramidal neurons of hippocampal slice cultures through the activation of TRPC6 channels. Hyperforin also evoked intracellular Ca(2+) transients and depolarizing inward currents sensitive to the TRPC channel blocker La(3+) , thus resembling the actions of the neurotrophin brain-derived neurotrophic factor (BDNF) in hippocampal pyramidal neurons. These results suggest that the antidepressant actions of St. John's wort are mediated by a mechanism similar to that engaged by BDNF.

Indexed as

AnimalsCalciumCalcium Channel BlockersDendritic SpinesDepressionGene ExpressionHippocampusHypericumLanthanumOrgan Culture TechniquesPhloroglucinolPlant ExtractsPyramidal CellsRatsRats, Sprague-DawleyRNA, Small InterferingCalciumCalcium Channel BlockershyperforinLanthanumPhloroglucinolPlant ExtractsRNA, Small InterferingTerpenesTrpc6 protein, ratTRPC Cation Channels

Identifiers

PMID22815087
PMCPMC3538039
OpenAlexW2106312528

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.